InChI=1S/C21H19F3N4O2S/c1-31(29,30)13-4-2-3-12(5-13)20-8-21(27-11-26-20)28-9-15(19(25)10-28)14-6-17(23)18(24)7-16(14)22/h2-8,11,15,19H,9-10,25H2,1H3/t15-,19+/m1/s1